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Bausch & Lomb Optical Co. Projection Apparatus (1917)
Bausch & Lomb Optical Co. · Rochester, N.Y: Bausch & Lomb Optical Co. · leaf 77
Bausch & Lomb Optic al Company and Special Vertical Attachment. 74Projection · Optics · Magic Lantern · Trade catalogs
Internet Archive · Toverlantaarnmuseum Scheveningen (TOMU) · Public domain (published before 1931). Free to use for anything.
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